1) The grade resistance factor for an earth moving machine can be obtained by multiplying grade percentage by a factor approximately equal to_________________? a. 2 kg/tonne b. 6 kg/tonne c. 9 kg/tonne d. 20 kg/tonne
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2) Which of the following surfaces will give highest rolling resistance for a rubber tyred vehicle? a. Concrete b. Loose sand c. Asphalt d. Firm earth
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3) Which one of the following surfaces will give highest coefficient of traction while using crawler track tractors? a. Ice b. Concrete c. Loose sand d. Earth
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4) An excavator costs Rs. 20,00,000/- and has an estimated life of 8 years. It has no salvage value at the end of 8 years. The book value of the excavator at the end of 3 years using general double declining balance method is__________________? a. Rs. 8,43,750/- b. Rs. 8,75,000/- c. Rs. 10,50,000/- d. Rs. 11,56,250/-
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5) Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing Reason R: If the angle of swing is decreased, the cycle time will be decreased_______________? a. Both A and R are true and R is the correct explanation of A b. Both A and R are true but R is not the correct explanation of A c. A is true but R is false d. A is false but R is true
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6) For a given size of bucket, the ideal output of a dragline will be least in_______________? a. Moist loam b. Sand and gravel c. Good common earth d. Wet sticky clay
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7) Which of the following earth moving machines has the shortest cycle time? a. Drag line b. Hoe c. Clam shell d. Dipper shovel
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8) Crash project duration is obtained by summing the________________? a. normal durations for all the activities b. crash durations for all activities c. crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities d. crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities
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9) The constraints in case of resource smoothening operation would be_______________? a. resources b. project duration time c. both resources and project duration time d. none of the above
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10) Slack time refers to_______________? a. an activity b. an event c. both event and activity d. none of the above
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